SSM - Health Systems

Elsevier

ISSN: 29498562

Journal publications in Cobalt

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.

Years of issue

2024-2026

journal names

SSM - Health Systems

All time from 2021

Publications

163

Citations

175

h-index

Publications

161

Citations

151

Top-3 citing journals

Healthcare Management Forum (10 citations)

Learning Health Systems (10 citations)

SSM - Health Systems (9 citations)

Top-3 organizations

London School of Hygiene & Tropical Medicine (17 publications)

University of Cape Town (8 publications)

University of Toronto (8 publications)

Top-3 countries

Canada (2 publications)

France (2 publications)

Turkey (2 publications)

Top-1 researchers by articles count

1 publication in journal

Balcha Wondu

lecturer

29 publications, 775 citations, 14 reviews

h-index: 7

Bahir Dar University

Most cited in 5 years

Found

Publication title

Found

Top-100

Citing journals

	2 4 6 8 10
Learning Health Systems	Learning Health Systems, 10, 5.71% Learning Health Systems 10 citations, 5.71%
Healthcare Management Forum	Healthcare Management Forum, 10, 5.71% Healthcare Management Forum 10 citations, 5.71%
SSM - Health Systems	SSM - Health Systems, 9, 5.14% SSM - Health Systems 9 citations, 5.14%
BMC Health Services Research	BMC Health Services Research, 6, 3.43% BMC Health Services Research 6 citations, 3.43%
Frontiers in Public Health	Frontiers in Public Health, 6, 3.43% Frontiers in Public Health 6 citations, 3.43%
International Journal for Equity in Health	International Journal for Equity in Health, 3, 1.71% International Journal for Equity in Health 3 citations, 1.71%
Healthcare	Healthcare, 3, 1.71% Healthcare 3 citations, 1.71%
Frontiers in Health Services	Frontiers in Health Services, 3, 1.71% Frontiers in Health Services 3 citations, 1.71%
PLOS Global Public Health	PLOS Global Public Health, 3, 1.71% PLOS Global Public Health 3 citations, 1.71%
BMJ Public Health	BMJ Public Health, 3, 1.71% BMJ Public Health 3 citations, 1.71%
Discover Public Health	Discover Public Health, 3, 1.71% Discover Public Health 3 citations, 1.71%
Health Policy and Planning	Health Policy and Planning, 2, 1.14% Health Policy and Planning 2 citations, 1.14%
Global Health Action	Global Health Action, 2, 1.14% Global Health Action 2 citations, 1.14%
BMC Public Health	BMC Public Health, 2, 1.14% BMC Public Health 2 citations, 1.14%
BMJ Global Health	BMJ Global Health, 2, 1.14% BMJ Global Health 2 citations, 1.14%
JAMA Pediatrics	JAMA Pediatrics, 2, 1.14% JAMA Pediatrics 2 citations, 1.14%
Research Involvement and Engagement	Research Involvement and Engagement, 2, 1.14% Research Involvement and Engagement 2 citations, 1.14%
Journal of Medical Internet Research	Journal of Medical Internet Research, 2, 1.14% Journal of Medical Internet Research 2 citations, 1.14%
Journal of Healthcare Leadership	Journal of Healthcare Leadership, 2, 1.14% Journal of Healthcare Leadership 2 citations, 1.14%
JMIR Research Protocols	JMIR Research Protocols, 2, 1.14% JMIR Research Protocols 2 citations, 1.14%
Health Services Insights	Health Services Insights, 2, 1.14% Health Services Insights 2 citations, 1.14%
International Journal of Environmental Research and Public Health	International Journal of Environmental Research and Public Health, 1, 0.57% International Journal of Environmental Research and Public Health 1 citation, 0.57%
Antibiotics	Antibiotics, 1, 0.57% Antibiotics 1 citation, 0.57%
World Development Perspectives	World Development Perspectives, 1, 0.57% World Development Perspectives 1 citation, 0.57%
Community Mental Health Journal	Community Mental Health Journal, 1, 0.57% Community Mental Health Journal 1 citation, 0.57%
The International Journal of Qualitative Methods	The International Journal of Qualitative Methods, 1, 0.57% The International Journal of Qualitative Methods 1 citation, 0.57%
Nutrients	Nutrients, 1, 0.57% Nutrients 1 citation, 0.57%
Sexual and Reproductive Health Matters	Sexual and Reproductive Health Matters, 1, 0.57% Sexual and Reproductive Health Matters 1 citation, 0.57%
Journal of Asian Architecture and Building Engineering	Journal of Asian Architecture and Building Engineering, 1, 0.57% Journal of Asian Architecture and Building Engineering 1 citation, 0.57%
Journal of Hospital Infection	Journal of Hospital Infection, 1, 0.57% Journal of Hospital Infection 1 citation, 0.57%
Health Policy and Technology	Health Policy and Technology, 1, 0.57% Health Policy and Technology 1 citation, 0.57%
Archives of Public Health	Archives of Public Health, 1, 0.57% Archives of Public Health 1 citation, 0.57%
Clinical Infectious Diseases	Clinical Infectious Diseases, 1, 0.57% Clinical Infectious Diseases 1 citation, 0.57%
BMC Pregnancy and Childbirth	BMC Pregnancy and Childbirth, 1, 0.57% BMC Pregnancy and Childbirth 1 citation, 0.57%
Evaluation and the Health Professions	Evaluation and the Health Professions, 1, 0.57% Evaluation and the Health Professions 1 citation, 0.57%
Frontiers in Pharmacology	Frontiers in Pharmacology, 1, 0.57% Frontiers in Pharmacology 1 citation, 0.57%
Journal of American College Health	Journal of American College Health, 1, 0.57% Journal of American College Health 1 citation, 0.57%
Social Politics	Social Politics, 1, 0.57% Social Politics 1 citation, 0.57%
Critical Public Health	Critical Public Health, 1, 0.57% Critical Public Health 1 citation, 0.57%
BMJ Open Quality	BMJ Open Quality, 1, 0.57% BMJ Open Quality 1 citation, 0.57%
Quality Management in Health Care	Quality Management in Health Care, 1, 0.57% Quality Management in Health Care 1 citation, 0.57%
Scientific Reports	Scientific Reports, 1, 0.57% Scientific Reports 1 citation, 0.57%
Psychology, Health and Medicine	Psychology, Health and Medicine, 1, 0.57% Psychology, Health and Medicine 1 citation, 0.57%
International Journal of Health Planning and Management	International Journal of Health Planning and Management, 1, 0.57% International Journal of Health Planning and Management 1 citation, 0.57%
South African Family Practice	South African Family Practice, 1, 0.57% South African Family Practice 1 citation, 0.57%
Journal of Nursing Regulation	Journal of Nursing Regulation, 1, 0.57% Journal of Nursing Regulation 1 citation, 0.57%
European Journal of Health Economics	European Journal of Health Economics, 1, 0.57% European Journal of Health Economics 1 citation, 0.57%
Health systems and reform	Health systems and reform, 1, 0.57% Health systems and reform 1 citation, 0.57%
Cogent Social Sciences	Cogent Social Sciences, 1, 0.57% Cogent Social Sciences 1 citation, 0.57%
Lecture Notes in Networks and Systems	Lecture Notes in Networks and Systems, 1, 0.57% Lecture Notes in Networks and Systems 1 citation, 0.57%
International Journal of Financial Studies	International Journal of Financial Studies, 1, 0.57% International Journal of Financial Studies 1 citation, 0.57%
Journal of Advanced Nursing	Journal of Advanced Nursing, 1, 0.57% Journal of Advanced Nursing 1 citation, 0.57%
Tropical Medicine and International Health	Tropical Medicine and International Health, 1, 0.57% Tropical Medicine and International Health 1 citation, 0.57%
Applied Geography	Applied Geography, 1, 0.57% Applied Geography 1 citation, 0.57%
JCO clinical cancer informatics	JCO clinical cancer informatics, 1, 0.57% JCO clinical cancer informatics 1 citation, 0.57%
System Dynamics Review	System Dynamics Review, 1, 0.57% System Dynamics Review 1 citation, 0.57%
Health Research Policy and Systems	Health Research Policy and Systems, 1, 0.57% Health Research Policy and Systems 1 citation, 0.57%
Environmental Management	Environmental Management, 1, 0.57% Environmental Management 1 citation, 0.57%
Journal of Women's Health	Journal of Women's Health, 1, 0.57% Journal of Women's Health 1 citation, 0.57%
JAMA Psychiatry	JAMA Psychiatry, 1, 0.57% JAMA Psychiatry 1 citation, 0.57%
European Journal of Cardiovascular Nursing	European Journal of Cardiovascular Nursing, 1, 0.57% European Journal of Cardiovascular Nursing 1 citation, 0.57%
Central European Journal of Operations Research	Central European Journal of Operations Research, 1, 0.57% Central European Journal of Operations Research 1 citation, 0.57%
Evaluation and Program Planning	Evaluation and Program Planning, 1, 0.57% Evaluation and Program Planning 1 citation, 0.57%
PLoS ONE	PLoS ONE, 1, 0.57% PLoS ONE 1 citation, 0.57%
BMJ	BMJ, 1, 0.57% BMJ 1 citation, 0.57%
Cureus	Cureus, 1, 0.57% Cureus 1 citation, 0.57%
Journal of Clinical Medicine	Journal of Clinical Medicine, 1, 0.57% Journal of Clinical Medicine 1 citation, 0.57%
Challenges	Challenges, 1, 0.57% Challenges 1 citation, 0.57%
International Journal of Information Technology	International Journal of Information Technology, 1, 0.57% International Journal of Information Technology 1 citation, 0.57%
BMC Primary Care	BMC Primary Care, 1, 0.57% BMC Primary Care 1 citation, 0.57%
European Journal of Investigation in Health Psychology and Education	European Journal of Investigation in Health Psychology and Education, 1, 0.57% European Journal of Investigation in Health Psychology and Education 1 citation, 0.57%
Frontiers in Political Science	Frontiers in Political Science, 1, 0.57% Frontiers in Political Science 1 citation, 0.57%
Discover Social Science and Health	Discover Social Science and Health, 1, 0.57% Discover Social Science and Health 1 citation, 0.57%
Urban Science	Urban Science, 1, 0.57% Urban Science 1 citation, 0.57%
International Journal of Social Determinants of Health and Health Services	International Journal of Social Determinants of Health and Health Services, 1, 0.57% International Journal of Social Determinants of Health and Health Services 1 citation, 0.57%
SSM - Mental Health	SSM - Mental Health, 1, 0.57% SSM - Mental Health 1 citation, 0.57%
The Lancet Regional Health - Western Pacific	The Lancet Regional Health - Western Pacific, 1, 0.57% The Lancet Regional Health - Western Pacific 1 citation, 0.57%
International Journal of Nursing Studies Advances	International Journal of Nursing Studies Advances, 1, 0.57% International Journal of Nursing Studies Advances 1 citation, 0.57%
JACC Advances	JACC Advances, 1, 0.57% JACC Advances 1 citation, 0.57%
Food and Humanity	Food and Humanity, 1, 0.57% Food and Humanity 1 citation, 0.57%
Unconventional Resources	Unconventional Resources, 1, 0.57% Unconventional Resources 1 citation, 0.57%
Hospitals	Hospitals, 1, 0.57% Hospitals 1 citation, 0.57%
Populations	Populations, 1, 0.57% Populations 1 citation, 0.57%
Nature Reviews Biodiversity	Nature Reviews Biodiversity, 1, 0.57% Nature Reviews Biodiversity 1 citation, 0.57%

	2 4 6 8 10

Citing publishers

	5 10 15 20 25 30 35
Springer Nature	Springer Nature, 32, 18.29% Springer Nature 32 citations, 18.29%
Elsevier	Elsevier, 21, 12% Elsevier 21 citations, 12%
SAGE	SAGE, 16, 9.14% SAGE 16 citations, 9.14%
Wiley	Wiley, 14, 8% Wiley 14 citations, 8%
MDPI	MDPI, 13, 7.43% MDPI 13 citations, 7.43%
Taylor & Francis	Taylor & Francis, 12, 6.86% Taylor & Francis 12 citations, 6.86%
Frontiers Media S.A.	Frontiers Media S.A., 11, 6.29% Frontiers Media S.A. 11 citations, 6.29%
BMJ	BMJ, 7, 4% BMJ 7 citations, 4%
Oxford University Press	Oxford University Press, 5, 2.86% Oxford University Press 5 citations, 2.86%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 4, 2.29% Public Library of Science (PLoS) 4 citations, 2.29%
Cold Spring Harbor Laboratory	Cold Spring Harbor Laboratory, 4, 2.29% Cold Spring Harbor Laboratory 4 citations, 2.29%
JMIR Publications	JMIR Publications, 4, 2.29% JMIR Publications 4 citations, 2.29%
American Medical Association (AMA)	American Medical Association (AMA), 3, 1.71% American Medical Association (AMA) 3 citations, 1.71%
Institute of Electrical and Electronics Engineers (IEEE)	Institute of Electrical and Electronics Engineers (IEEE), 2, 1.14% Institute of Electrical and Electronics Engineers (IEEE) 2 citations, 1.14%
Ovid Technologies (Wolters Kluwer Health)	Ovid Technologies (Wolters Kluwer Health), 1, 0.57% Ovid Technologies (Wolters Kluwer Health) 1 citation, 0.57%
American Society of Clinical Oncology (ASCO)	American Society of Clinical Oncology (ASCO), 1, 0.57% American Society of Clinical Oncology (ASCO) 1 citation, 0.57%
	5 10 15 20 25 30 35

Publishing organizations

	2 4 6 8 10 12 14 16 18
London School of Hygiene & Tropical Medicine	London School of Hygiene & Tropical Medicine, 17, 10.43% London School of Hygiene & Tropical Medicine 17 publications, 10.43%
University of Cape Town	University of Cape Town, 8, 4.91% University of Cape Town 8 publications, 4.91%
University of Toronto	University of Toronto, 8, 4.91% University of Toronto 8 publications, 4.91%
Liverpool School of Tropical Medicine	Liverpool School of Tropical Medicine, 6, 3.68% Liverpool School of Tropical Medicine 6 publications, 3.68%
French Institute of Health and Medical Research	French Institute of Health and Medical Research, 6, 3.68% French Institute of Health and Medical Research 6 publications, 3.68%
Johns Hopkins University	Johns Hopkins University, 5, 3.07% Johns Hopkins University 5 publications, 3.07%
Karolinska Institute	Karolinska Institute, 4, 2.45% Karolinska Institute 4 publications, 2.45%
University of New South Wales	University of New South Wales, 4, 2.45% University of New South Wales 4 publications, 2.45%
University of Sydney	University of Sydney, 4, 2.45% University of Sydney 4 publications, 2.45%
University of Melbourne	University of Melbourne, 4, 2.45% University of Melbourne 4 publications, 2.45%
University of York	University of York, 4, 2.45% University of York 4 publications, 2.45%
Lund University	Lund University, 3, 1.84% Lund University 3 publications, 1.84%
University of Oxford	University of Oxford, 3, 1.84% University of Oxford 3 publications, 1.84%
University of Copenhagen	University of Copenhagen, 3, 1.84% University of Copenhagen 3 publications, 1.84%
Maastricht University	Maastricht University, 3, 1.84% Maastricht University 3 publications, 1.84%
University of Queensland	University of Queensland, 3, 1.84% University of Queensland 3 publications, 1.84%
University of KwaZulu-Natal	University of KwaZulu-Natal, 3, 1.84% University of KwaZulu-Natal 3 publications, 1.84%
South African Medical Research Council	South African Medical Research Council, 3, 1.84% South African Medical Research Council 3 publications, 1.84%
Mahidol University	Mahidol University, 3, 1.84% Mahidol University 3 publications, 1.84%
Ifakara Health Institute	Ifakara Health Institute, 3, 1.84% Ifakara Health Institute 3 publications, 1.84%
Harvard University	Harvard University, 3, 1.84% Harvard University 3 publications, 1.84%
University of Washington	University of Washington, 3, 1.84% University of Washington 3 publications, 1.84%
University of Ghana	University of Ghana, 3, 1.84% University of Ghana 3 publications, 1.84%
Paris Cité University	Paris Cité University, 3, 1.84% Paris Cité University 3 publications, 1.84%
McMaster University	McMaster University, 3, 1.84% McMaster University 3 publications, 1.84%
University of Waterloo	University of Waterloo, 3, 1.84% University of Waterloo 3 publications, 1.84%
University of São Paulo	University of São Paulo, 3, 1.84% University of São Paulo 3 publications, 1.84%
University of Zambia	University of Zambia, 3, 1.84% University of Zambia 3 publications, 1.84%
Ilia State University	Ilia State University, 2, 1.23% Ilia State University 2 publications, 1.23%
Hanoi School Of Public Health	Hanoi School Of Public Health, 2, 1.23% Hanoi School Of Public Health 2 publications, 1.23%
University of Bordeaux	University of Bordeaux, 2, 1.23% University of Bordeaux 2 publications, 1.23%
University of Bern	University of Bern, 2, 1.23% University of Bern 2 publications, 1.23%
University of Basel	University of Basel, 2, 1.23% University of Basel 2 publications, 1.23%
Swiss Tropical and Public Health Institute	Swiss Tropical and Public Health Institute, 2, 1.23% Swiss Tropical and Public Health Institute 2 publications, 1.23%
University of Southern Denmark	University of Southern Denmark, 2, 1.23% University of Southern Denmark 2 publications, 1.23%
National University of Singapore	National University of Singapore, 2, 1.23% National University of Singapore 2 publications, 1.23%
University of Southampton	University of Southampton, 2, 1.23% University of Southampton 2 publications, 1.23%
University of Glasgow	University of Glasgow, 2, 1.23% University of Glasgow 2 publications, 1.23%
Monash University	Monash University, 2, 1.23% Monash University 2 publications, 1.23%
Stellenbosch University	Stellenbosch University, 2, 1.23% Stellenbosch University 2 publications, 1.23%
University of the Western Cape	University of the Western Cape, 2, 1.23% University of the Western Cape 2 publications, 1.23%
Gadjah Mada University	Gadjah Mada University, 2, 1.23% Gadjah Mada University 2 publications, 1.23%
Dalhousie University	Dalhousie University, 2, 1.23% Dalhousie University 2 publications, 1.23%
University of Nigeria	University of Nigeria, 2, 1.23% University of Nigeria 2 publications, 1.23%
Makerere University	Makerere University, 2, 1.23% Makerere University 2 publications, 1.23%
Muhimbili University of Health and Allied Sciences	Muhimbili University of Health and Allied Sciences, 2, 1.23% Muhimbili University of Health and Allied Sciences 2 publications, 1.23%
University of Dar es Salaam	University of Dar es Salaam, 2, 1.23% University of Dar es Salaam 2 publications, 1.23%
University of Dodoma	University of Dodoma, 2, 1.23% University of Dodoma 2 publications, 1.23%
University of the Philippines Manila	University of the Philippines Manila, 2, 1.23% University of the Philippines Manila 2 publications, 1.23%
University for Development Studies	University for Development Studies, 2, 1.23% University for Development Studies 2 publications, 1.23%
University of Michigan	University of Michigan, 2, 1.23% University of Michigan 2 publications, 1.23%
University of British Columbia	University of British Columbia, 2, 1.23% University of British Columbia 2 publications, 1.23%
University of Leeds	University of Leeds, 2, 1.23% University of Leeds 2 publications, 1.23%
Virginia Commonwealth University	Virginia Commonwealth University, 2, 1.23% Virginia Commonwealth University 2 publications, 1.23%
Nagasaki University	Nagasaki University, 2, 1.23% Nagasaki University 2 publications, 1.23%
Sorbonne Paris Nord University	Sorbonne Paris Nord University, 2, 1.23% Sorbonne Paris Nord University 2 publications, 1.23%
Amsterdam Institute for Global Health and Development	Amsterdam Institute for Global Health and Development, 2, 1.23% Amsterdam Institute for Global Health and Development 2 publications, 1.23%
Western University	Western University, 2, 1.23% Western University 2 publications, 1.23%
Université Laval	Université Laval, 2, 1.23% Université Laval 2 publications, 1.23%
University of Alberta	University of Alberta, 2, 1.23% University of Alberta 2 publications, 1.23%
Université Clermont Auvergne	Université Clermont Auvergne, 2, 1.23% Université Clermont Auvergne 2 publications, 1.23%
Centre for Addiction and Mental Health	Centre for Addiction and Mental Health, 2, 1.23% Centre for Addiction and Mental Health 2 publications, 1.23%
Moi University	Moi University, 2, 1.23% Moi University 2 publications, 1.23%
Kathmandu University	Kathmandu University, 2, 1.23% Kathmandu University 2 publications, 1.23%
Cheikh Anta Diop University	Cheikh Anta Diop University, 2, 1.23% Cheikh Anta Diop University 2 publications, 1.23%
Queen Margaret University	Queen Margaret University, 2, 1.23% Queen Margaret University 2 publications, 1.23%
University of Massachusetts Chan Medical School	University of Massachusetts Chan Medical School, 2, 1.23% University of Massachusetts Chan Medical School 2 publications, 1.23%
Université de Montréal	Université de Montréal, 2, 1.23% Université de Montréal 2 publications, 1.23%
University of Sierra Leone	University of Sierra Leone, 2, 1.23% University of Sierra Leone 2 publications, 1.23%
University of Liberia	University of Liberia, 2, 1.23% University of Liberia 2 publications, 1.23%
University of Eldoret	University of Eldoret, 2, 1.23% University of Eldoret 2 publications, 1.23%
University of Delhi	University of Delhi, 1, 0.61% University of Delhi 1 publication, 0.61%
Gazi University	Gazi University, 1, 0.61% Gazi University 1 publication, 0.61%
Information Technology University	Information Technology University, 1, 0.61% Information Technology University 1 publication, 0.61%
Dokuz Eylül University	Dokuz Eylül University, 1, 0.61% Dokuz Eylül University 1 publication, 0.61%
Jawaharlal Nehru University	Jawaharlal Nehru University, 1, 0.61% Jawaharlal Nehru University 1 publication, 0.61%
Mersin University	Mersin University, 1, 0.61% Mersin University 1 publication, 0.61%
International Institute for Population Sciences	International Institute for Population Sciences, 1, 0.61% International Institute for Population Sciences 1 publication, 0.61%
Peking University	Peking University, 1, 0.61% Peking University 1 publication, 0.61%
Ben-Gurion University of the Negev	Ben-Gurion University of the Negev, 1, 0.61% Ben-Gurion University of the Negev 1 publication, 0.61%
University of Rajasthan	University of Rajasthan, 1, 0.61% University of Rajasthan 1 publication, 0.61%
University of Malaya	University of Malaya, 1, 0.61% University of Malaya 1 publication, 0.61%
Uppsala University	Uppsala University, 1, 0.61% Uppsala University 1 publication, 0.61%
University Hospital Heidelberg	University Hospital Heidelberg, 1, 0.61% University Hospital Heidelberg 1 publication, 0.61%
Umeå University	Umeå University, 1, 0.61% Umeå University 1 publication, 0.61%
University of Lausanne	University of Lausanne, 1, 0.61% University of Lausanne 1 publication, 0.61%
University of Geneva	University of Geneva, 1, 0.61% University of Geneva 1 publication, 0.61%
Australian National University	Australian National University, 1, 0.61% Australian National University 1 publication, 0.61%
Western Sydney University	Western Sydney University, 1, 0.61% Western Sydney University 1 publication, 0.61%
University of Bologna	University of Bologna, 1, 0.61% University of Bologna 1 publication, 0.61%
Istituti di Ricovero e Cura a Carattere Scientifico	Istituti di Ricovero e Cura a Carattere Scientifico, 1, 0.61% Istituti di Ricovero e Cura a Carattere Scientifico 1 publication, 0.61%
Università Cattolica del Sacro Cuore	Università Cattolica del Sacro Cuore, 1, 0.61% Università Cattolica del Sacro Cuore 1 publication, 0.61%
American University of Beirut	American University of Beirut, 1, 0.61% American University of Beirut 1 publication, 0.61%
Imperial College London	Imperial College London, 1, 0.61% Imperial College London 1 publication, 0.61%
University College London	University College London, 1, 0.61% University College London 1 publication, 0.61%
Queen Mary University of London	Queen Mary University of London, 1, 0.61% Queen Mary University of London 1 publication, 0.61%
University of Liverpool	University of Liverpool, 1, 0.61% University of Liverpool 1 publication, 0.61%
St George's, University of London	St George's, University of London, 1, 0.61% St George's, University of London 1 publication, 0.61%
University of Birmingham	University of Birmingham, 1, 0.61% University of Birmingham 1 publication, 0.61%
Yale University	Yale University, 1, 0.61% Yale University 1 publication, 0.61%

	2 4 6 8 10 12 14 16 18

Publishing countries